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Air-sea CO2 cycling in the southeastern Beaufort Sea
(American Geophysical UnionAmerican Geophysical UnionAmerican Geophysical UnionAmerican Geophysical Union, 2011-06-14)
During the fourth International Polar Year, an interdisciplinary study was conducted to examine the couplings between sea ice, ocean, atmosphere, and ecosystem in the southeastern Beaufort Sea. This thesis examines components ...
The effect of atmosphere-snow-ice-ocean coupling on hexachlorocyclohexane (HCH) pathways within the Arctic marine environment
(CMOSAGUACS, 2010)
The importance of the cryosphere, and of sea ice in particular, for contaminant transport and redistribution in the Arctic was pointed out in the literature. However, studies on contaminants in sea ice are scarce, and ...
Spatial and temporal changes of photosynthetically available radiation, temperature and salinity beneath a variable sea ice cover
(2012-01-13)
Melt ponds greatly increase the transmission of solar radiation through sea ice relative to snow covered or bare ice. This rise in transmittance has the potential to enhance water column heating and primary production. I ...
Biodiversity of the Muscidae (Diptera) from Churchill, Manitoba, Canada, with taxonomic issues revealed or resolved by DNA barcoding
(2012-01-05)
A 2007 survey of muscid flies from Churchill, Manitoba, Canada, yielded 155 species. The diversity of this contemporary assemblage was compared to that of an historical (pre-1965) assemblage. Few differences were found ...
The influence of the Mackenzie River Plume on marine larval fish assemblages in the Canadian Beaufort Sea shelf
(2011-09-15)
In the Beaufort Sea, freshwater input from the Mackenzie River creates a relatively warm and turbid plume across the coastal shelf region. To determine the effects of the Mackenzie River plume on marine larval fish abundance, ...
Linking feeding and reproductive ecology in beluga (Delphinapterus leucas) and narwhal (Monodon monoceros)
(2014-04-22)
Beluga whales (Delphinapterus leucas) and narwhals (Monodon monoceros) are arctic specialists. Both species show philopatry to their summer grounds, though the reason for this site tenacity is not well understood. Aside ...
Mercury uptake and dynamics in sea ice algae, phytoplankton and grazing copepods from a Beaufort Sea Arctic marine food web
(2012-09-21)
Mercury (Hg) is one of the primary contaminants of concern in the Arctic marine ecosystem. Methyl Hg (MeHg) is known to biomagnify in food webs. During the International Polar Year - Circumpolar Flaw Lead study, sea ice, ...
A new toxicity test with the Arctic algae Nitzschia frigida
(2022-01)
There is a pressing need to understand the impact of emerging contaminants on Arctic ecosystems; however, most standard toxicity tests are for temperate species. The lack of Arctic-specific tests may result in an underestimation ...
The economic impacts of restricting black carbon emissions on cargo shipping in the Polar Code Area
(2021)
Since black carbon (BC) has become one of the most harmful pollutants and partly accelerated the melting of the Arctic sea ice, internationally mandatory policy to limit black carbon emissions in the whole Polar Code Area ...
An examination of the Pre-Dorset caribou hunters from the deep interior of Southern Baffin Island, Nunavut, Canada
(2014-04-21)
The faunal remains from four archaeological sites on the northwest shore of Mingo Lake, in the interior of Southern Baffin Island, are examined in this thesis. All four sites are radiocarbon dated to Pre-Dorset times (4500 ...